On quantum key distribution using ququarts
Abstract
A comparative analysis of quantum key distribution protocols using qubits and ququarts as information carriers is presented. Several schemes of incoherent attacks that can be used by an eavesdropper to obtain secret information are considered. The errors induced by the eavesdropper are analyzed for several key distribution protocols.
- Publication:
-
Soviet Journal of Experimental and Theoretical Physics
- Pub Date:
- May 2007
- DOI:
- 10.1134/S106377610705007X
- Bibcode:
- 2007JETP..104..736K
- Keywords:
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- 03.67.Hkm;
- 42.25.Ja;
- 42.50.Dv